Toy sky-writing airplane



2 w. E. MILLER 2,608,025

TOY SKY-WRITING AIRPLANE Filed June 16, 1950 l 2 Sl-IEETS-SHEET 1 g- 26, 1952 w. E. MILLER 2,608,025

TOY SKY-WRITING AIRPLANE Filed June 16, 1950 2 Sl-IEETS'SHEET 2 JNVENTOR. Mu rzwfl M2451? Patented Aug. 26, 1952 UNITED STATES PATENT gFFICE} 2,608,02 5 TQY SKY-WRITING AIRPLANE Walter E. Miller, West Hartford, Conn;

Application June 16, 1950, Serial No. 168,489

2 Claims. (01. 469) This invention relates to toy airplanes and more particularly to such toy airplanes as are whirled around in the air at th end of a cord to imitate stunt flying.

It is an object of this invention to provide a toy airplane of novel construction, having means therein for producing a buzzing noise, while the airplane is being whirled around, to imitate the noise of a real airplane engine and thereby render the toy more attractive. I

It is a further object of the invention to provide such a toy airplane having 'novel means for imitating sky-writing.

Further objects and advantages of this inventionwill be more clearly understood from the following description and the accompanying drawings in which:

Fig. 1 is a plan view of a toy airplane embodying my invention.

Fig. 2 is a front view thereof.

Fig. 3 is a sectional front view on line '3--3 of Fig. 1.

Fig. 4 is a sectional side view of my improved toy airplane.

Fig. 5 is a front view, on a reduced scale, showing the manner in which my toy airplane is used.

Fig. 6 is an enlarged side view of the powder container used in connection with my present invention.

In the preferred embodiment of my invention which is illustrated, my improved toy airplane is in the form of a monoplane having a hollow fuselage 5 and a pair of wings 66 extending from the sides thereof. The fuselage also has stabilizers 1-1 and a rudder 8 at the end thereof.

In accordance with the present invention, the inner end of each wing is constructed to provide a horizontally divided portion 9, having an air opening Ill extending therethrough in the direction of the longitudinal axis of the fuselage. These passages in the opposite wings communicate across the interior of the fuselage through openings I ll l in the side walls thereof, and the said fuselage is also provided with a front opening l2 and a rear opening I3 to permit the passage of air longitudinally through the fuselage.

In order to cause a buzzing, or humming, noise while the plane is being moved through the air, I provide a series of thin rubber strips 14 which are stretched across the air passages i0l0 in the wings and extend through the interior of the fuselage. These strips are preferably in the form of rubber bands and are extended over the tops of the upper portions |5|5 of the wings and through the walls of the fuselage and across air.

, 2 the interior thereof so as to provide additional stretches N5 of said rubber strips between raised projections l1 and 18, on each of the wings, which space the stretches 16 from the portions l5.

My present invention also includes novel means for imitating sky-writing, such asis commonly done with the use of smoke or the like that'is ejected from an airplane while in motion.

Such means preferably comprise a suitable con tainer I9 which is supported upon the longer stretches l4 of the r'ubber bands that extend across the air passages Ill-l0. This container is provided with a filler tube that has a closure 2|, and extends upwardly from the container through an opening in thetop of the fuselage that is large eenough to permitfre'e movement" of the tube and the container. The bottom of said container has an orifice therein which opens through a connecting tube 22 into an air tube 23 that is supported substantially in line with the air opening I 2 and has a funnel shaped forward portion 24. Various materials may be placed within the container [9 to imitate smoke, but I have found that a common form of talcum powder or the like, which is easily obtainable, may be used to produce the desired effect. This powder, which is indicated at 25, may be placed in the container through the filler tube 20.

It will be noted that the container IS, with the tubes 20 and 23 thereon, is supported entirely upon the rubber bands so that it may move therewith as the said bands are vibrated.

In the use of my improved toy airplane, a string or cord is secured to a suitable loo 26 on the fuselage and the plane is whirled through the air in circles, figure eights, dives and various other maneuvers to imitate stunt or exhibition flying. During the whirling of the plane, air will rush through the passages Ill-l0 and causethe rubber stri s I4 therein to vibrate and produce sounds imitating the noise of an airplane in flight. If desired, the said strips may be stretched unevenly so as to produce sounds of different pitches which may even be harmonized. The passage of air over the portions 16 of the rubber strips will cause them to vibrate and add to the humming or buzzing noise produced by the strips I 4.

When it is desired to produce an imitation of sky-writing, a powder is placed within the container l9 before the plane is whirled through the Vibration of the rubber bands, which is caused by the movement of air through the fuselage as indicated by the arrows in Fig. 4, will cause the container I9 to be vibrated and thereby permit the powder 25 to sift through the orifice in the bottom of the container and enter the tube 23. The rush of air through this tube will carry the powder rearwardly through the rear portion of the fuselage and outwardly through the rear opening l3, and thereby leave a stream of powder in the wake of the plane which may be given difierent formations to produce the desired sky-writing effect. v

The orificeintheabottom ofthe container 11 may be smal'l enough toprevent the 'powderfrom sifting through it when the plane is not in motion and the container is not being vibrated. This will also cause the powder to passslowly item the container I9 and thereby assure an even flow of powder during the movement of the plane and conserve the supply thereof I claim:

1. A toy airplane comprising a fuselage new, ing a passage extending fltherethrough to permit 'theo-eassa zofair-curren slen itudinallythmu h saidiueelaea-wingse tendin immiopnositesides o1. itheiusel se, an aelon -at d stretchable meme b r str tched ac oss the-s id passegeanq-a apt ed :to -:vibrate under the of air :currents passin rtherethrou h, a con ainer feran dered'smaterial supported upon said stretchable mem er and :havin an orifice V-therein e v'Pfi-rm t the passa e of powder hereromwhen the. so tainer is yibra-ted uncnz-the'v b atzionof sa d-e Eated stretchable member; the said p wder be:

dispensed into the-passage extending through the-- -iuse1age i'andexnell d from lithe rear pi said fuselage to thereby imitate" sky-ewriting'w durin movementof the airplane throu h-therein.

J Artsy-airplane comprising :a :fuselage' havin an'bpening therethrough itomerm trthe massage of air currents longitudinally'through said fuselage, wings extending from opposite sides of the fuselage, an elongated stretchable member stretched across said opening and adapted to vibrate under the influence of air currents passing therethrough, a container for powdered material supported upon said stretchable member and having an orifice in the bottom thereof to permit the passage of said material from the container when :it is vi bra1tecl by the vibration oizthe stretchable member, an air 'tube extending longitudinally of the fuselage in said opening and in the path of air currents passing therethrough; the said airtube havingan opening in the upper wall thereof in communication with said orifice to receive the powder-dispensed from said container and place it inthe pathuqf the air currents passing through said tube whereby the powder will be mixed with theair currents as they pass through said air tube and be expelled from the end of the fuselage to imit teskywritingv V H REFERENCES CIinEn I llhe following :referenees are not :record in the file of this patent:

STATES PATENTS Number .Name Date 30 2,222,677 Main Mam.lhlorhzfi laeli taste-s53 amdiirr lsna gnao t.l22,,1e46 '2, 9.4;,6.05 Albrecht am-F m "J an. v151 19.50

FOREIGN PATENTS H g 35 Number iCountr-y Date" t teams QGrea't isritain ai i, tru L951 i i l 

